Oracle 1Z0-042

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Oracle database 10g:Administration I Sample Questions:

1. Which statement is true about the loss of system-critical data files in ARCHIVELOG mode?

A) The data files can be recovered to the time of the most recent backup.
B) The data file is taken offline automatically; the database remains open.
C) The data files can be recovered without shutting down the database.
D) The data files can be recovered till the last committed transaction.

2. You want to create a tablespace with the following specifications:
1.The tablespace extends automatically.
2.Used and free extents should be managed by bitmaps.
3.Default PCTUSED attribute is set to 60.
4.All the extents would be of size 1 MB.
Which three options would you choose to create the tablespace? (Choose three.)

A) tablespace with segment space management as manual
B) tablespace with a uniform extent allocation of 1 MB
C) tablespace with dictionary-managed extents
D) tablespace with AUTOEXTEND enabled
E) tablespace with segment space management as automatic

3. You perform differential incremental level 1 backups of your database on each working day and level 0 backup on Sundays. Which two statements are true about the differential incremental backups? (Choose two.)

A) The backup performed on Sundays contains all the blocks that have changed since the last level 1 backup.
B) The backup performed on each working day contains all the blocks that have changed since the last level 0 or level 1 backup.
C) The backup performed on each working day contains all the blocks that have changed since the last level 0 backup.
D) The backup performed on Sundays contains all the blocks that have ever been use in the database.

4. Your database is running in the ARCHIVELOG mode. You placed a tablespace, tbs_1, offline with the immediate option. Which statement is correct in this scenario?

A) The operation would fail if tbs_1 were a read-only tablespace.
B) If the above operation were successful, media recovery would be required to bring the tablespace online.
C) The operation would fail if tbs_1 were a read/write tablespace.
D) If the above operation were successful, instance recovery would be required to bring the tablespace online.
E) The operation would fail if tbs_1 were the default tablespace for the database.

5. View the Exhibit.
Which statement causes more undo generation?

A) INSERT INTO emp VALUES(7999,'JHON','CLERK',7782,'10-MAY-83',1500,NULL,10);
B) DELETE FROM emp WHERE empno=7934;
C) UPDATE emp SET comm=400 WHERE empno=7844;
D) SELECT * FROM emp;

Solutions: